The research and development of accident tolerant fuel(ATF)has become a new research direction in the international fuel industry in the post-Fukushima era,which involves the research and development of advanced cladding materials and new nuclear fuels.After more than ten years of comprehensive and systematic research,the international nuclear fuel industry represented by the U.S.and France have gained important progress,focusing further on medium and long-term technical solutions.In this paper,the important progress,challenges and development trend of subsequent technologies in ATF cladding materials(including Cr coating,FeCrAl alloy and SiC composite)and fuels(including enhanced UO2,high uranium density fuel and ceramic dispersive matrix dispersion(CDM)fuel)at home and abroad are reviewed.
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